Sash-fastener



(1v 0 Model.)

A; JOHN SON. SASH FASTENER.

Patented July 14, 1891.

I clear, and exact description -1'0 all whom it may concern.-

NITEo STATES AXEL Johnson, on can LAND, A'ssIeNon' To 'run PATENT '{OFFICE} MARSI lALIi IMPROVED "SASH-'FA-&TEN

SPECIFIGATION fanning part of Letters PatentNo. 456,129, dated July 14, 1891.

Application filed October 27,1890. Serial No. 369,517-

Be it known that I, AXEL JOHNSON, a cit-izen of Sweden, residing at Oakland, Alameda county, State of California, have invented an Improvement in Automatic Sash-Locks; and I hereby declare the following to be a full,

of the same.

Myinvention relates to sash-fasteners,and especially to that class in which a turningbutton in the window-sash acts to withdraw andto release a spring-controlled detent or pawl by whichthe locking is effected.

y invention consists, in combination with this turning button, of an arm or piece projecting into the path 'of the button, whereby the latter, when the sash is moved, comes in contactwith and is turned bythe arm or piece, thereby automatically locking the sash.

The object of my in vention is to provide for automatically locking the sash. This may take place when the sash is closed, so that the consequences of neglecting to lock it are avoided, or it may take place at any point in the movement of the sash, thereby serving as a safety device in case the sash should drop.

Referring to the accompanying drawings for a more complete explanation of my invention, Figure 1 isa perspective view of the sashand casing, showing the turn-button on the former and the contact arm or piece on the latter. Fig. 2 is a sectional detail showing one form of locking device which is operatedby the turn-button. 7 1

In the sash-stile A is located the turn-button G, by which the locking and unlocking of the sash is effected. I Upon the casing II is fixed an arm or piece I, the end i of which projects into-the path oi. the head 9 of button G, and when said button comes in con tact with the arm or piece thlhbntton will be turned, and so will affect the locking device. 1,

Although I do not confine myself to any particular form of locking device, I have here for the-sake of clearness illustrated that form shown in the Patent N 0. 433,600, dated August 5, 1890, to Benjamin Marshall, and in which a detent o'rpawl D, having a horizontal top arm is tl'lrned to substantially as herein described.

(No model.)

(I, is held down by a spring F to its engagement with a pinion ll on a turn-rodC, con trolled by a spring, said pinion engaging a rack on the wimlow-easing. This device constitutes a form of sash-balance, and the detent or pawl engaging the pinion locks the sash. Now by turning the button G its inner end, working up under the arm (I, raises saiddetcnt or pawl from its engagement with the pinion, and thus unlocks thesash. The but-- ton is so arranged that when its head g is in a horizontalposition its inner end is holding up the detent or pawl and the sash is unlocked; but when the head of the button comes in contact with thc end of ,the fixed arm I said button will be turned slightly, but sufficiently to start it, and the spring F the detent or pawl down and so lock the window. 'lhe loekin g is therefore automatic? 'Now by placing the arm or piece I low ehon'ghen inside will throw the casing it can be made to operate the turnbutton and to lock. the sash whenclosed, and

by placing it at any point higher up will act.

as a safety device to automatically lock the sash in case the latte'rshoulddrop from any cause, 4

llavingthns described my invention, what Iclaiin as new, and desire to Patent, isr 1. In combination with a turn-bntt-oL-for operating the locking device of a sash, an arm or piecewith which said button is adapted to come in contact, whereby it isturned to lock the sash, substantially as herein described.

2. In combination with a movable detent or secure by Letters pawl by which the locking is effected and a turn-button by which said dctent or pawl is operated, an arm or piece with which said button is adapted to come in contact, whereby operate the detent or pawl,

In witness whereof I have hereunto set my hand. v

, AXEL JOHNSON. Witnesses: 1

H. H; Nounsn, ll. lien. 

